Stochastic Modals for the Simulation of Parking Choices - a Non Network Approach



Stochastic Modals for the Simulation of Parking Choices - a Non Network Approach

Authors

BIFULCO G, University of Naples, Italy

Description

The aim of this paper is to present a parking model for the evaluation of the effects of parking policies applied in urban areas. This paper faces the same range of issues already presented in a previous PTRC Summer Meeting in 1991 (Cascetta et al, 1991).

Abstract

The aim of this paper is to present a parking model for the evaluation of the effects of parking policies applied in urban areas. This paper faces the same range of issues already presented in a previous PTRC Summer Meeting in 1991 (Cascetta et al, 1991). However a different simulating approach is followed. The model presented in 1991, in fact, is of a network type (see also Eldin & Ismail., 1981), while the present one is of a non-network type (see, among others, Van der Goot, 1982; Polak et al, 1990).

The network based approach consists in simultaneously simulating the parking choice and the path choice by using an extended network which take into account some properly introduced parking (and pedestrian) links. On parking links the parking costs are considered. The contextual calculation of the cost of the joint route and parking alternatives is possible by summing up the link costs on the network. In this case the parking choices are explicitly simulated within the assignment.

The non-network approach consists in explicitly introducing a separate choice sub-model within the standard succession of demand and assignment models (see figure 1). In this latter case the parking choice model belongs to the so called "demand models" rather than to the "assignment".

In the following section the non-network approach will be fully discussed, while in section 3 a comparison will presented between the general simulating properties of the non-network and the network approaches.

Publisher

Association for European Transport